package com.framework.utils.pay17;

import net.sf.json.JSONObject;

import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.ConnectException;
import java.net.URL;
import java.net.UnknownHostException;
import java.security.SecureRandom;

public class HttpRequestUtil
{

	/**
	 * 发起https请求并获取结果
	 * 
	 * @param requestUrl
	 *            请求地址
	 * @param requestMethod
	 *            请求方式（GET、POST）
	 * @param outputStr
	 *            提交的数据
	 * @return JSONObject(通过JSONObject.get(key)的方式获取json对象的属性值)
	 */
	public static JSONObject httpRequest(String requestUrl,
			String requestMethod, String outputStr)
	{

		System.err.println(requestMethod + "\toutputStr=" + outputStr);

		JSONObject jsonObject = null;
		StringBuffer buffer = new StringBuffer();
		try
		{
			// 创建SSLContext对象，并使用我们指定的信任管理器初始化
			TrustManager[] tm = { new Pay17X509TrustManager() };

            //SunJSSE ， JSSE （ Java Secure Socket Extension ）是实现 Internet 安全通信的一系列包的集合。
			SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
			sslContext.init(null, tm, new SecureRandom());

			// 从上述SSLContext对象中得到SSLSocketFactory对象
			SSLSocketFactory ssf = sslContext.getSocketFactory();

			URL url = new URL(requestUrl);
			HttpsURLConnection httpUrlConn = (HttpsURLConnection) url.openConnection();
			httpUrlConn.setSSLSocketFactory(ssf);

			httpUrlConn.setDoOutput(true);
			httpUrlConn.setDoInput(true);
			httpUrlConn.setUseCaches(false);
			// 设置请求方式（GET/POST）
			httpUrlConn.setRequestMethod(requestMethod);

			if ("GET".equalsIgnoreCase(requestMethod))
				httpUrlConn.connect();

			// 当有数据需要提交时
			if (null != outputStr)
			{
				OutputStream outputStream = httpUrlConn.getOutputStream();
				// 注意编码格式，防止中文乱码
				outputStream.write(outputStr.getBytes("UTF-8"));
				outputStream.close();
			}

			// 将返回的输入流转换成字符串
			InputStream inputStream = httpUrlConn.getInputStream();
			InputStreamReader inputStreamReader = new InputStreamReader(
					inputStream, "utf-8");
			BufferedReader bufferedReader = new BufferedReader(
					inputStreamReader);

			String str = null;
			while ((str = bufferedReader.readLine()) != null)
			{
				buffer.append(str);
			}

            // 释放资源
			bufferedReader.close();
			inputStreamReader.close();
			inputStream.close();
			inputStream = null;
			httpUrlConn.disconnect();

			jsonObject = JSONObject.fromObject(buffer.toString());
		} catch (ConnectException ce)
		{
			ce.printStackTrace();
			System.out.println("网络链接失败！");
		} catch (UnknownHostException uhe)
		{
			uhe.printStackTrace();
			System.out.println("远程主机无法访问....！");
		} catch (Exception e)
		{
			e.printStackTrace();
		}
		return jsonObject;
	}

}
